Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polyolefin powder capable of uniform mixing with plant small piece and preparation method thereof

A polyolefin and powder technology, applied in the field of polyolefin powder and its preparation, can solve the problems of low utilization efficiency of refrigerants, large differences in ambient temperature, easy to cause frostbite, etc., and achieves weight reduction, large solvent loss, and enhanced solubility. Effect

Inactive Publication Date: 2013-07-24
JIUJIANG UNIVERSITY
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frozen crushing is a mechanical crushing method, which consumes a lot of mechanical energy and produces a lot of noise; because it is cryogenic, there is a large difference in temperature from the environment, fast heat transfer, low refrigerant utilization efficiency, low production efficiency, and easy operation. Cause frostbite, and low temperature operation puts higher requirements on the equipment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyolefin powder capable of uniform mixing with plant small piece and preparation method thereof
  • Polyolefin powder capable of uniform mixing with plant small piece and preparation method thereof
  • Polyolefin powder capable of uniform mixing with plant small piece and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Put 1 kg of polyethylene pellets and 15 liters of xylene into a reflux stirring heating kettle, raise the temperature of the system to 140°C under stirring conditions, and reflux at this temperature until the polyethylene dissolves. After the temperature of the system was lowered to 100° C., it was slowly poured into a stirred mixing tank containing 15 liters of absolute ethanol, and the mixture was closed and stirred until the system dropped to room temperature. The material in the mixing kettle is suction-filtered under reduced pressure, the filter cake is crushed by a stone mill, and then dry-blended into powder. Put the obtained powder in a vacuum distillation kettle, add 10 liters of tap water at the same time, raise the temperature to 95°C under stirring conditions, depressurize with a water pump, and gradually increase the vacuum degree to ensure that the distillation process is carried out smoothly until there is no more xylene until steamed. The material in th...

Embodiment 2

[0038] Put 1 kg of recycled polyethylene film and bottle material and 20 liters of toluene into a reflux stirring heating kettle, raise the temperature of the system to 160°C under stirring conditions, and reflux at this temperature until the polyethylene dissolves. After the temperature of the system was reduced to 110° C., the floating impurities on the surface were floated off, and slowly poured into a stirring mixing kettle with 35 liters of absolute ethanol, and the bottom precipitated impurities were retained in the reflux stirring heating kettle when pouring. After pouring, close and stir until the system drops to room temperature. The material in the mixing kettle is suction filtered under reduced pressure, the filter cake is crushed by a stone mill, and then dry-stirred into powder with a four-leaf stick stirring device. Put the obtained powder in a vacuum distillation kettle, add 20 liters of tap water at the same time, raise the temperature to 95°C under stirring co...

Embodiment 3

[0040] Put 1 kg of recovered polyethylene, polystyrene, polypropylene mixed film and bottle material, 10 liters of toluene and 10 liters of xylene into the reflux stirring heating kettle, and raise the temperature of the system to 160 ° C under stirring conditions, and in this Reflux at temperature until the polyethylene dissolves. After the temperature of the system is reduced to 110° C., the impurities floating on the surface are floated off, and slowly poured into a stirring mixing kettle with 40 liters of absolute ethanol, and the precipitated impurities at the bottom are retained in the reflux stirring heating kettle when pouring. After pouring, close and stir until the system drops to room temperature. The material in the mixing kettle is suction-filtered under reduced pressure, the filter cake is crushed by a stone mill, and then dry-blended into powder. Put the obtained powder in a vacuum distillation kettle, add 15 liters of tap water at the same time, raise the temp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a polyolefin powder capable of uniform mixing with plant small pieces and a preparation method of the polyolefin powder. The powder comprises the ingredients of polyethylene, polypropylene, polystyrene or the mixture of the three, the particle size of the powder is 100nm-1mm, apparent density is 0.18g / mL-0.40g / mL, and the uniform mixing of the powder with the small pieces of plant root, stem, trunk, leaf, and seed case can be achieved through a mixing medium. The preparation process of the powder comprises the following steps of: mixing solid materials in various forms with a special solvent, heating the mixture for dissolution, carrying out thermo-precipitation using a special precipitant, carrying out separation, rolling homogenization and dispersion, separating the solvent and the precipitant for recycling, drying the resulting product, and grinding the dried product. The whole preparation process has the characteristics of material recycling, less volatile matter, strong environment protection and the like; the prepared powder can be applied to preparing an environment-friendly composite material which is further applied to fabricating a container, furniture, a finishing material, a toy and the like; and the prepared powder can be used as raw material for powder coating and a hot melt adhesive material which is easy in uniform coating.

Description

[0001] technical field [0002] The invention belongs to the field of special processing of macromolecular materials, and mainly relates to a polyolefin powder which can be uniformly mixed with plant scraps and a preparation method thereof. Background technique [0003] Polyolefin is a class obtained by homopolymerization or copolymerization of monomers such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene, etc. Generic term for thermoplastic resins. Due to the abundance of raw materials, low price, easy processing and excellent comprehensive performance, it is the largest and most widely used type of polymer materials, among which polyethylene, polypropylene and polystyrene are widely used. Polyethylene is a thermoplastic resin obtained by polymerization of ethylene. It is odorless, non-toxic, and feels like wax. It has excellent low temperature resistance, chemical stability, acid and alkali resistance, small water absorption, and electr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L25/06C08L97/02C08J3/14B29B9/12C09D123/06C09D123/12C09D125/06C09D5/03C09J123/06C09J123/12C09J125/06
Inventor 吴传保曾湘晖尹健美刘利江
Owner JIUJIANG UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com